- All sections
- B - Performing operations; transporting
- B64C - Aeroplanes; helicopters
- B64C 21/04 - Influencing air flow over aircraft surfaces by affecting boundary layer flow by use of slot, ducts, porous areas or the like for blowing
Patent holdings for IPC class B64C 21/04
Total number of patents in this class: 193
10-year publication summary
|
16
|
14
|
26
|
21
|
19
|
19
|
21
|
14
|
6
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Boeing Company | 19843 |
52 |
| Airbus Operations GmbH | 3188 |
25 |
| Jetoptera, Inc. | 71 |
16 |
| Textron Innovations Inc. | 2138 |
7 |
| Airbus Operations S.A.S. | 2407 |
6 |
| Lockheed Martin Corporation | 3406 |
6 |
| Airbus Defence and Space GmbH | 886 |
5 |
| BAE SYSTEMS plc | 2215 |
4 |
| General Electric Company | 18133 |
3 |
| Pratt & Whitney Canada Corp. | 4215 |
3 |
| Rolls-Royce PLC | 2944 |
3 |
| Rensselaer Polytechnic Institute | 776 |
3 |
| Sikorsky Aircraft Corporation | 1150 |
3 |
| Rtx Corporation | 8674 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
2 |
| Georgia Tech Research Corporation | 2453 |
2 |
| Forsvarets materielverk | 7 |
2 |
| Safran Aircraft Engines | 5739 |
2 |
| University of Miami | 823 |
2 |
| GE Infrastructure Technology, LLC | 5873 |
2 |
| Other owners | 42 |